Choi Moonhyuk used to be a fighter for an illegal club. He will do anything to protect his brothers. On the day of his supposed 15th consecutive win, he ends up losing and is sold to Daebuho's son, Seo Yeonjin. In accordance to the shameless Yeonjin's plans, Moonhyuk ends up being his mad dog and winds up under his leash.

Hwa Gok is just a normal university student, until he sees a girl being attacked by the popular Lee Bin, and jumps in her defence. The only problem is that Lee Bin is more than meets the eye…

(Source: MU